Boat Head Plumbing Diagram
It takes seawater from outside the boat circulates it either through the engine itself a raw water cooled system or through a heat exchanger a freshwater cooled system and then pumps hot exhaust water overboard with the engine s exhaust.
Boat head plumbing diagram. Breather vent plumbing should be 38mm 1 1 2 bore mm. Otherwise if the head s internal valves are held open by debris an inevitable occurrence water will siphon back into the boat. Rinse out plumbing deck to tank is usually 19mm 3 4 but other plumbing must be 38mm 1 1 2 the level indicator shown in all layouts is the tek tanks tankminder as this meets the minimum requirements for waste tank level indication. Mount the vented loop so it will remain above the waterline at all heel angles.
Boat plumbing is a lot easier for the do it yourselfer than plumbing at home mainly because it doesn t involve rigid pipes running inside solid walls. Re assembly for left hand use if you wish to change the pump mounting from right to left hand do so before installing the toilet. Looking at the pumpout plumbing it goes from the holding tank to a y connector then out to the deck fitting on one side and to a stub of a hose on the other side. Poor head installations sink boats every year.
Marine plumbing boaters marine supply has a huge selection of affordable boating products like marine plumbing equipment parts marine plumbing systems boat pumps marine blowers boat siphoning equipment bilge pumps marine toilets plumbing parts head parts marine heads from flojet jabsco raritan rule. Most boats large and small will have or require some plumbing. This stub of hose is semi blocked off stuffed with a rag. Key 31 are references to the exploded view diagram on the back page.
They re usually mounted against a bulkhead. Clean the anti siphon valve regularly to keep it functioning. We also have cleaning systems and accessories sponges mops nozzles hoses. A common cause of boat sinkings is from backflow created by siphons in the head and engine seawater intake hoses and head discharge hose.
Vented loops installed in the hose above the waterline prevent siphons from occurring and don t impede normal flow. The engine cooling system is a dedicated plumbing system that s independent of the domestic plumbing. Here is an overview of a typical on board water system. Pull off the hose key 4 that runs from the pump to the bowl.
We sell both bronze and marelon models.